let teachers = [
    {
      "id": "T001",
      "name": "张教授",
      "password": "123456",
      "college": "计算机学院",
      "title": "教授",
      "email": "zhang@university.edu",
      "phone": "13800138001",
      "research_area": "人工智能与机器学习",
      "courses": ["数据结构", "算法分析", "人工智能导论"],
      "office": "科技楼A座508室",
      "employment_data": {
        "total_students": 86,
        "employed_rate": 95.3,
        "avg_salary": 16800,
        "higher_edu_rate": 16.2
      }
    },
    {
      "id": "T002",
      "name": "李副教授",
      "password": "123456",
      "college": "软件工程学院",
      "title": "副教授",
      "email": "li@university.edu",
      "phone": "13900139002",
      "research_area": "软件工程与系统架构",
      "courses": ["软件工程", "系统分析与设计", "项目管理"],
      "office": "信息楼B座312室",
      "employment_data": {
        "total_students": 74,
        "employed_rate": 92.6,
        "avg_salary": 15400,
        "higher_edu_rate": 18.7
      }
    },
    {
      "id": "T003",
      "name": "王讲师",
      "password": "123456",
      "college": "电子信息学院",
      "title": "讲师",
      "email": "wang@university.edu",
      "phone": "13700137003",
      "research_area": "嵌入式系统与物联网",
      "courses": ["嵌入式系统", "物联网技术", "传感器网络"],
      "office": "工程楼C座209室",
      "employment_data": {
        "total_students": 68,
        "employed_rate": 93.8,
        "avg_salary": 14600,
        "higher_edu_rate": 15.4
      }
    },
    {
      "id": "T004",
      "name": "赵教授",
      "password": "123456",
      "college": "数据科学学院",
      "title": "教授",
      "email": "zhao@university.edu",
      "phone": "13600136004",
      "research_area": "大数据分析与可视化",
      "courses": ["数据挖掘", "大数据技术", "可视化分析"],
      "office": "数理楼D座401室",
      "employment_data": {
        "total_students": 62,
        "employed_rate": 96.2,
        "avg_salary": 17200,
        "higher_edu_rate": 21.5
      }
    },
    {
      "id": "T005",
      "name": "陈副教授",
      "password": "123456",
      "college": "网络工程学院",
      "title": "副教授",
      "email": "chen@university.edu",
      "phone": "13500135005",
      "research_area": "网络安全与分布式系统",
      "courses": ["网络安全", "分布式计算", "密码学"],
      "office": "信息楼B座215室",
      "employment_data": {
        "total_students": 58,
        "employed_rate": 94.1,
        "avg_salary": 16200,
        "higher_edu_rate": 17.3
      }
    }
  ]